diff options
Diffstat (limited to 'actionpack/lib/action_dispatch/http/mime_negotiation.rb')
| -rw-r--r-- | actionpack/lib/action_dispatch/http/mime_negotiation.rb | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/actionpack/lib/action_dispatch/http/mime_negotiation.rb b/actionpack/lib/action_dispatch/http/mime_negotiation.rb index 40bb060d52..346598b6de 100644 --- a/actionpack/lib/action_dispatch/http/mime_negotiation.rb +++ b/actionpack/lib/action_dispatch/http/mime_negotiation.rb @@ -10,6 +10,8 @@ module ActionDispatch self.ignore_accept_header = false end + attr_reader :variant + # The MIME type of the HTTP request, such as Mime::XML. # # For backward compatibility, the post \format is extracted from the @@ -64,6 +66,18 @@ module ActionDispatch end end + # Sets the \variant for template. + def variant=(variant) + if variant.is_a? Symbol + @variant = variant + else + raise ArgumentError, "request.variant must be set to a Symbol, not a #{variant.class}. " \ + "For security reasons, never directly set the variant to a user-provided value, " \ + "like params[:variant].to_sym. Check user-provided value against a whitelist first, " \ + "then set the variant: request.variant = :tablet if params[:variant] == 'tablet'" + end + end + # Sets the \format by string extension, which can be used to force custom formats # that are not controlled by the extension. # |